Geological survey

A geological survey is the systematic investigation of the geology beneath a given piece of ground for the purpose of creating a geological map or model. Geological surveying employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing methods, such as aerial photography and satellite imagery. Such surveys may be undertaken by state, province, or national geological survey organizations to maintain the geological inventory and advance the knowledge of geosciences for the benefit of the nation. A geological survey map typically superimposes the surveyed extent and boundaries of geological units on a topographic map, together with information at points (such as measurements of orientation of bedding planes) and lines (such as the intersection of faults with the land surface). The maps and reports created by geological survey organisations generally aim for geographic continuity and completeness in establishing the spatial patterns of near-surface rock units. The map may include cross sections to illustrate the three-dimensional interpretation. Subsurface geological and geophysical maps, providing limited coverage of deeper geology (known, for example, from drilling for oil or gas), are maintained internally by major oil companies and regulators. Some geological survey organisations have collaborated with them to include subsurface geology in their systematic surveys, for example, the Geological Atlas of the Western Canada Sedimentary Basin. Subsurface maps typically depict the three-dimensional form of geological surfaces by means of contours and cross sections. Computer-based models are increasingly used to provide more comprehensive information storage and greater flexibility of presentation. In the United States, the 50 state surveys are coordinated by the Association of American State Geologists.

单词	Geological Survey
释义	Geological Survey 英语例句库 The mines had been closed down following a geological survey. 继一次地质调查之后,这些矿井已被关闭了。 The workers skirted the edge of the cliff on a geological survey. 工人们沿着崖壁作了一次地质勘察。原声例句当月 CNN 10 学生英语 That's according to U.S. Geological Survey. 这是美国地质调查局的数据。 NPR音讯 2014年4月合集 Don Blake minister with the US geological survey. 美国地质调查局的唐·布莱克部长表示。科学60秒-科学美国人 2019年4月合集 Eric Waller, a biogeographer at the U.S. Geological Survey. 美国地质调查局的生物地理学家埃里克·沃勒说到。 VOA Daily Standard 2019年2月合集 The US Geological Survey recently unveiled its new earthquake alert system called Shake Alert. 美国地质调查局（USGS）近日公布了其新型地震警报系统，名为Shake Alert。 VOA Special 2022年8月合集 Phil Wilby studies ancient life at the British Geological Survey. 菲尔·威尔比在英国地质调查局研究远古生物。科学60秒-科学美国人 2022年5月合集 Ecologist Collin Eagles-Smith of the United States Geological Survey. 美国地质调查局的生态学家科林·伊格尔斯-史密斯说。 VOA Special 2023年6月合集 He is the lead researcher of the U.S. Geological Survey. 他是美国地质调查局的首席研究员。 VOA Special 2022年6月合集 Robert Saunders is a scientist with the U.S. Geological Survey. 罗伯特·桑德斯是美国地质调查局的一名科学家。 VOA Special 2022年9月合集 He studies glaciers at the Geological Survey of Denmark and Greenland. 他在丹麦和格陵兰地质调查局研究冰川。 AP 听力 2016年7月合集 The U.S. Geological Survey puts the magnitudes at 5.9 and 6.4. 美国地质勘探局称震级分别为5.9和6.4级。 VOA Special 2017年9月合集 The U.S. Geological Survey said the two quakes appeared to be unrelated. 美国地质调查局表示，这两场地震似乎并无关联。 VOA慢速英语_世界 The British nonprofit group WaterAid and the British Geological Survey examined the situation. 英国非营利组织“水援助”和英国地质调查局调查了这一情况。 NPR音讯 2017年9月合集 The United States Geological Survey says the quake had a magnitude of 8.1. 美国地质调查局表示，这场地震的震级为8.1级。 VOA Standard 2014年8月合集 David Applegate is Associate Director for Natural Hazards at the U.S. Geological Survey. 美国地质调查局自然灾害部门的副主任大卫·阿普尔盖特说道。当月 CNN 10 学生英语 2020年1月合集 The U.S. geological survey has recorded hundreds of tremors within the past couple weeks. 美国地质调查局在过去几周内记录了数百次地震。 VOA慢速英语_生活 The United States Geological Survey (USGS) estimates tens of thousands live in South Florida. 美国地质调查局(USGS)估计，南佛罗里达有数万人居住。经济学人-综合 Otherwise, he lived on the money he earned working for the Geological Survey of India. 如果不去踢球，他可以在印度地理勘测局（Geological Survey of India）的供职，生活本不必如此辛苦。 BBC 听力 2022年9月合集 United States geological survey recorded a magnitude of 5.3 near the eastern city of Jalalabad. 美国地质调查局记录到东部城市贾拉拉巴德附近发生 5.3 级地震。 AP 听力 2017年9月合集 The US Geological Survey said the new 6.1-magnitude quake occurred in the state of Oaxaca. 美国地质勘探局称，此次的6.1级地震发生于瓦哈卡州。 AP 听力 2021年9月合集 The U.S. Geological Survey said the quake was centered about ten miles northeast of Acapulco. 美国地质调查局表示，地震中心位于阿卡普尔科东北约10英里处。英语百科 Geological survey A geological survey is the systematic investigation of the geology beneath a given piece of ground for the purpose of creating a geological map or model. Geological surveying employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing methods, such as aerial photography and satellite imagery. Such surveys may be undertaken by state, province, or national geological survey organizations to maintain the geological inventory and advance the knowledge of geosciences for the benefit of the nation. A geological survey map typically superimposes the surveyed extent and boundaries of geological units on a topographic map, together with information at points (such as measurements of orientation of bedding planes) and lines (such as the intersection of faults with the land surface). The maps and reports created by geological survey organisations generally aim for geographic continuity and completeness in establishing the spatial patterns of near-surface rock units. The map may include cross sections to illustrate the three-dimensional interpretation. Subsurface geological and geophysical maps, providing limited coverage of deeper geology (known, for example, from drilling for oil or gas), are maintained internally by major oil companies and regulators. Some geological survey organisations have collaborated with them to include subsurface geology in their systematic surveys, for example, the Geological Atlas of the Western Canada Sedimentary Basin. Subsurface maps typically depict the three-dimensional form of geological surfaces by means of contours and cross sections. Computer-based models are increasingly used to provide more comprehensive information storage and greater flexibility of presentation. In the United States, the 50 state surveys are coordinated by the Association of American State Geologists.
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Geological Survey

Geological survey